MODULATION QUALITY MEASUREMENTS IN BLUETOOTHTM SYSTEMS THROUGH TIME-FREQUENCY REPRESENTATIONS
Leopoldo Angrisani, Massimo D’Apuzzo, Mauro D’Arco
Abstract:
A digital-signal-processing method for assessing bluetooth transmitters modulation quality is presented and validated. Thanks to the use of the Short Time Fourier Transform (STFT), a typical time-frequency representation (TFR), the instantaneous frequency trace of the bluetooth signal is first attained; the most significant parameters peculiar to modulation quality are then measured through straightforward procedures. The influence on measurement results of different choices of the STFT parameters is exhaustively analysed. The optimal tuning of the parameters, capable of granting the lowest experimental standard deviations, is finally found.
Keywords:
Time Frequency Representation, binary-GFSK modulation, frequency deviation measurement, frequency drift measurement, initial carrier frequency tolerance measurement
Download:
PWC-2003-TC4-003.pdf
DOI:
-
Event details
Event name:
XVII IMEKO World Congress
Title:

Metrology in the 3rd Millennium

Place:
Dubrovnik, CROATIA
Time:
22 June 2003 - 28 June 2003
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